Zip Code 62203 — East Saint Louis, IL

ZIP Code 62203 is associated with East Saint Louis, IL, in St. Clair County. The listed population estimate is 5,465; estimated density is 373.5 people per square mile. Among records with population estimates, it ranks #15 of 27 in St. Clair County and #462 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.602230, -90.075340)

Data MetricLocal Statistic
Postal / Zip Code62203
Primary CityEast Saint Louis
State / ProvinceIL
CountySt. Clair
Total Population5,465
Population Density373.5 people/sq mi
TimezoneAmerica/Chicago

How 62203 Compares

MetricZIP 62203St. Clair County recordsIL records
Population estimate5,465247,743 (sum)12,694,745 (sum)
Population Density373.5 /sq mi----
County population rank#15 of 27----
State population rank#462 of 1,390----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in IL

ZIP CodeCityDistancePopulation estimate
ZIP 62205East Saint Louis2.1 mi6,459
ZIP 62204East Saint Louis2.3 mi4,055
ZIP 62207East Saint Louis3.0 mi6,984
ZIP 62208Fairview Heights3.8 mi16,821
ZIP 62201East Saint Louis4.3 mi4,921

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →